formbook | 79c131e66bd132cec01935296fce8326c5fda972d830b8d53555548ad9dce6ff

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
22/05/2026, 23:22

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
tmp0v4eycxf.js
Size 3.0MB
Sample260522-3cn6faax2t
SHA256 79c131e66bd132cec01935296fce8326c5fda972d830b8d53555548ad9dce6ff
MD5 abf5f8237b0fcb989cfd5d4f372b2e58
SHA1 5d862fecd1d71ac96d025c287ad8a69474949987
SHA512 c9107860dfb7198f9423bc0e0e49e54f73e4106ebdcca032ddc3c058aba62ecf0ed2ec04afff96e6d49151ea7159070cc041c7972cae4e43816b3c7ed775013d
SSDEEP 49152:YTd4SulqG11YKzqmi85B2FHgRXD9DpmrNmBhSGUw7xNEoRxx2Nht8RvVbT7j:r
TLSH
T1ADE55C17D66F5B4D180A3B61106A5D9AFE89CAFCEF726BC4E0CF90B210EE1110B855B7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware collection defense_evasion discovery execution formbook persistence privilege_escalation rat spyware stealer trojan

Malware Config

Signatures

Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 6 IoCs

rat

resource	yara_rule
behavioral2/memory/2784-18-0x0000000000F00000-0x0000000000F46000-memory.dmp	family_formbook
behavioral2/memory/2784-21-0x0000000000F00000-0x0000000000F46000-memory.dmp	family_formbook
behavioral2/memory/2784-23-0x0000000000F00000-0x0000000000F46000-memory.dmp	family_formbook
behavioral2/memory/2784-29-0x0000000000F00000-0x0000000000F46000-memory.dmp	family_formbook
behavioral2/memory/4464-31-0x00000000007B0000-0x00000000007F3000-memory.dmp	family_formbook
behavioral2/memory/4464-34-0x00000000007B0000-0x00000000007F3000-memory.dmp	family_formbook

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
27	2520	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1620	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation	wscript.exe

Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	sethc.exe

ConfuserEx .NET packer 2 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/1620-12-0x000001DECBF10000-0x000001DECBF24000-memory.dmp	ConfuserEx
behavioral2/memory/1620-15-0x000001DECBF30000-0x000001DECBF44000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 13 IoCs

description	pid	Process	procid_target
PID 1620 set thread context of 2784	1620	powershell.exe	98
PID 2784 set thread context of 2520	2784	aspnet_compiler.exe	84
PID 2784 set thread context of 4464	2784	aspnet_compiler.exe	99
PID 1620 set thread context of 1820	1620	powershell.exe	106
PID 4464 set thread context of 2520	4464	sethc.exe	84
PID 1620 set thread context of 3884	1620	powershell.exe	109
PID 1620 set thread context of 3328	1620	powershell.exe	110
PID 1620 set thread context of 2112	1620	powershell.exe	113
PID 4464 set thread context of 1608	4464	sethc.exe	112
PID 1620 set thread context of 3476	1620	powershell.exe	120
PID 1620 set thread context of 1628	1620	powershell.exe	122
PID 1620 set thread context of 364	1620	powershell.exe	124
PID 4464 set thread context of 3268	4464	sethc.exe	123

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
persistence privilege_escalation

Accessibility Features
T1546.008

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sethc.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
1896	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	sethc.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
2784	aspnet_compiler.exe
2784	aspnet_compiler.exe
2784	aspnet_compiler.exe
2784	aspnet_compiler.exe
1620	powershell.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe
1620	powershell.exe
1620	powershell.exe
1820	aspnet_compiler.exe
1620	powershell.exe
3884	aspnet_compiler.exe
1620	powershell.exe
3328	aspnet_compiler.exe
1620	powershell.exe
2112	aspnet_compiler.exe
1620	powershell.exe
3476	aspnet_compiler.exe
1620	powershell.exe
1620	powershell.exe
1620	powershell.exe
1628	aspnet_compiler.exe
1620	powershell.exe
364	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
2784	aspnet_compiler.exe
2520	wscript.exe
2520	wscript.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe
4464	sethc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1620	powershell.exe
Token: SeDebugPrivilege	1896	taskkill.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1620	2520	wscript.exe	85
PID 1620 wrote to memory of 4844	1620	powershell.exe	87
PID 1620 wrote to memory of 4272	1620	powershell.exe	88
PID 1620 wrote to memory of 4796	1620	powershell.exe	89
PID 1620 wrote to memory of 1204	1620	powershell.exe	90
PID 1620 wrote to memory of 1576	1620	powershell.exe	91
PID 1620 wrote to memory of 2784	1620	powershell.exe	98
PID 1620 wrote to memory of 2784	1620	powershell.exe	98
PID 1620 wrote to memory of 2784	1620	powershell.exe	98
PID 2520 wrote to memory of 4464	2520	wscript.exe	99
PID 1620 wrote to memory of 1820	1620	powershell.exe	106
PID 1620 wrote to memory of 1820	1620	powershell.exe	106
PID 1620 wrote to memory of 1820	1620	powershell.exe	106
PID 1620 wrote to memory of 3884	1620	powershell.exe	109
PID 1620 wrote to memory of 3884	1620	powershell.exe	109
PID 1620 wrote to memory of 3884	1620	powershell.exe	109
PID 1620 wrote to memory of 3328	1620	powershell.exe	110
PID 1620 wrote to memory of 3328	1620	powershell.exe	110
PID 1620 wrote to memory of 3328	1620	powershell.exe	110
PID 4464 wrote to memory of 1608	4464	sethc.exe	112
PID 1620 wrote to memory of 2112	1620	powershell.exe	113
PID 1620 wrote to memory of 2112	1620	powershell.exe	113
PID 1620 wrote to memory of 2112	1620	powershell.exe	113
PID 1620 wrote to memory of 3476	1620	powershell.exe	120
PID 1620 wrote to memory of 3476	1620	powershell.exe	120
PID 1620 wrote to memory of 3476	1620	powershell.exe	120
PID 1620 wrote to memory of 928	1620	powershell.exe	121
PID 1620 wrote to memory of 1628	1620	powershell.exe	122
PID 1620 wrote to memory of 1628	1620	powershell.exe	122
PID 1620 wrote to memory of 1628	1620	powershell.exe	122
PID 4464 wrote to memory of 3268	4464	sethc.exe	123
PID 1620 wrote to memory of 364	1620	powershell.exe	124
PID 1620 wrote to memory of 364	1620	powershell.exe	124
PID 1620 wrote to memory of 364	1620	powershell.exe	124
PID 2520 wrote to memory of 1896	2520	wscript.exe	127

outlook_office_path 1 IoCs

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	sethc.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\tmp0v4eycxf.js
1⤵
- Badlisted process makes network request
- Checks computer location settings
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_e1ZnvkWvZgt6_1779492142239.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4272
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4796
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1204
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1576
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:2784
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1820
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3884
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3328
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2112
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3476
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:928
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1628
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:364
- C:\Windows\SysWOW64\sethc.exe
  "C:\Windows\SysWOW64\sethc.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  PID:4464
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:1608
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3268
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1896

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:4792

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:4872

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Privilege Escalation

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

ps_e1ZnvkWvZgt6_1779492142239.ps1

Path C:\Temp\ps_e1ZnvkWvZgt6_1779492142239.ps1
Size 2.2MB
SHA256 4c33280e380d3a6f82b382ad915632993a2b9447b9ac02ef16b749e1fd700566
MD5 221d965a4b813540fe64363e5f804a4b
SHA1 61ceaa8767baaac404de35058d5bc58d8db556b9
SHA512 73cee6cc9a91dc2ad154530b0448a4927d2ca6cabb9d705898cdf106693442b21ef1f92c327f4055b7a84417c521401dece156ab4bad7971db3694aee9aba59a
SSDEEP 24576:l6yNX0tpRDNnUQ8hf6eHCKdA2Tki34uq2hxPzhnsx:0
TLSH
T1CDA5BFCAD56E44D29C053FC9A8142BC78B2546728A7400283A7F7D898F774FEC15EEE6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_rpfruv5k.e54.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rpfruv5k.e54.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1608-41-0x00000282D02D0000-0x00000282D03CB000-memory.dmp

Download

memory/1620-11-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-22-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-12-0x000001DECBF10000-0x000001DECBF24000-memory.dmp

Download

memory/1620-13-0x000001DECBF20000-0x000001DECBF26000-memory.dmp

Download

memory/1620-14-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-15-0x000001DECBF30000-0x000001DECBF44000-memory.dmp

Download

memory/1620-17-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-19-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-2-0x000001DEB3A70000-0x000001DEB3A92000-memory.dmp

Download

memory/1620-1-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/1620-24-0x000001DECBF40000-0x000001DECBF50000-memory.dmp

Download

memory/2520-48-0x000002A5A2FD0000-0x000002A5A30B5000-memory.dmp

Download

memory/2520-33-0x000002A5A2FD0000-0x000002A5A30B5000-memory.dmp

Download

memory/2784-21-0x0000000000F00000-0x0000000000F46000-memory.dmp

Download

memory/2784-18-0x0000000000F00000-0x0000000000F46000-memory.dmp

Download

memory/2784-23-0x0000000000F00000-0x0000000000F46000-memory.dmp

Download

memory/2784-25-0x0000000001490000-0x00000000014B4000-memory.dmp

Download

memory/2784-28-0x0000000000F00000-0x0000000000F46000-memory.dmp

Download

memory/2784-30-0x0000000001490000-0x00000000014B4000-memory.dmp

Download

memory/2784-29-0x0000000000F00000-0x0000000000F46000-memory.dmp

Download

memory/2784-16-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/2784-20-0x00000000014E0000-0x000000000182A000-memory.dmp

Download

memory/3268-49-0x000001F041650000-0x000001F04171D000-memory.dmp

Download

memory/4464-27-0x00000000007B0000-0x00000000007F3000-memory.dmp

Download

memory/4464-34-0x00000000007B0000-0x00000000007F3000-memory.dmp

Download

memory/4464-31-0x00000000007B0000-0x00000000007F3000-memory.dmp

Download

memory/4464-26-0x00000000007B0000-0x00000000007F3000-memory.dmp

Download